{"name":"Humble Oil And Refining Company Drilling Activity in Jefferson County, Mississippi","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/humble-oil-and-refining-company/mississippi/jefferson-ms","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Humble Oil And Refining Company","operatorSlug":"humble-oil-and-refining-company","state":"MS","county":"Jefferson","totalWells":47,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":9,"topFormation":"Austin Chalk","rankInCounty":1,"firstPermitDate":"1946-02-20","lastPermitDate":"1948-10-04"}